318916201 has 2 divisors, whose sum is σ = 318916202. Its totient is φ = 318916200.

The previous prime is 318916139. The next prime is 318916207. The reversal of 318916201 is 102619813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305410576 + 13505625 = 17476^2 + 3675^2 .

It is a cyclic number.

It is not a de Polignac number, because 318916201 - 2¹¹ = 318914153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (318916207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159458100 + 159458101.

It is an arithmetic number, because the mean of its divisors is an integer number (159458101).

Almost surely, 2^318916201 is an apocalyptic number.

It is an amenable number.

318916201 is a deficient number, since it is larger than the sum of its proper divisors (1).

318916201 is an equidigital number, since it uses as much as digits as its factorization.

318916201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 318916201 is about 17858.2250237811. The cubic root of 318916201 is about 683.2173093250.

The spelling of 318916201 in words is "three hundred eighteen million, nine hundred sixteen thousand, two hundred one".